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Compared to the density of water the density of a fish is?
The density of the liquid water is rho = 1,000 kg/m3 or 1,0 g/cm3. SI standard for density rho = mass m / volume V in kg/m3. A fish should have a very similar density to the water it swims in. Archimedes' principle states that the buoyant force on an object is equal to the weight of the water it displaces. The total vertical force on a fish is that of gravity, the buoyant force, and any reaction force generated by swimming. If the fish were much denser than water or saltwater, as the case may be, the weight of the displaced water would be much less than the fish's weight, and the fish would sink. If the fish were much less dense, then the fish would float to the surface. To keep at a desired depth, perhaps with a little help from swimming, the fish should be about as dense as the water it swims in. Many fish have a swim bladder, also called a "gas bladder", which fills with a gas, usually oxygen, and which helps regulate the fish's average density. The rest of the fish then is a bit denser on average than water.
Can extraneous variables be controlled?
no the variables cant be controlled.
What does controlled mean?
Radio controlled refers to something that is controlled by remote means via radio frequency, such as radio controlled cars or planes. It is slightly different than remote controlled items which usually have a wire connection.
How do you know if something is controlled in science?
if the experement can be repeated and the same results made then the experement is controlled if not the experement is not controlled
The mass of a known volume of a substance?
u will need the density. density = mass / volume so mass = volume x density
How do fish use density in order to move in the water?
Fish use density in order to move in the water since they do not have lungs. When the density of water keeps changing, fish use it to move and thereby using less energy.
Limiting factors that are controlled by the size of population?
Density- Dependent factors
Do all animals have the same body density?
No, birds have a very light skeleton which makes their density lower so they can fly. Fish have an air bladder which increases their buoyancy (decreases density) so that fish body density is equal to water density. Fat animals have a lower average density than lean animals. Etc.
Is fish 's life cycle and pisciculture are same?
No, pisciculture is the controlled breeding, hatching, and rearing of fish.
What is the relationship between temperature and hydrocarbon densities in a controlled environment?
In a controlled environment, the relationship between temperature and hydrocarbon densities is that as temperature increases, the density of hydrocarbons decreases. This is because higher temperatures cause the molecules of hydrocarbons to spread out, leading to a decrease in density.
How is carrying capacity controlled by density?
Carrying capacity is controlled by density-dependent factors, such as competition for resources, disease spread, and territorial behavior. As population density increases, these factors can limit the resources available to individuals, leading to a decrease in birth rates, an increase in death rates, or both, ultimately affecting the carrying capacity of the environment.
What is the manipulated variable in density?
In the context of density, the manipulated variable is the factor that is intentionally changed or controlled in an experiment to observe its effect on the density of a substance. This could include variables like temperature, pressure, or composition of the substance.
What do you do with the remote controlled helicopter in wimpy boardwalk?
you put the fish sticks on the hook and get the crab
What is the density of fish oil?
Appr. 0.92 kg/L @ 25 Celsius
What is the difference between ichthyology and fish and fisheries?
Ichthyology is the study of the group of animals called fish. Fish are a group of aquatic animals with fins. Fisheries are entities engaged in the controlled harvesting of fish, generally for food.
How do fish control their density in water to sink or float?
Fish control relative density by 1 swim bladder , 2 more fat in body , 3 more lipid in liver , 4 heterocercal tail in sharks .
When fisherman catch fish with a spearthey aim at a point slightly below the spot where the fish seem to be. Give reason.?
To see the fish, light passes from air through the water. As light crosses over from the gas (air) to the liquid( (water) the density increases. The greater density bends (refracts) light, displacing the apparent location of the fish. You must aim at where the fish is, and not where its image is.
